Home › Maharashtra SSC (Class 10) › Chemistry › Metallurgy › Why do ionic compounds generally have high melti…
Why do ionic compounds generally have high melting and boiling points?
ALoose stacking of neutral molecules
BWeak covalent sharing between atoms
CFree electrons moving between layers
DStrong electrostatic attraction between ions
Answer & Solution
Correct answer: D. Strong electrostatic attraction between ions
1. Ionic compounds consist of oppositely charged ions held together.
2. The electrostatic force of attraction between these ions is very strong.
3. Large energy is needed to overcome this attraction.
4. Hence melting and boiling points are high; weak covalent sharing would give low values, ruling that out.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 8 "Metallurgy", p.109_
Related questions
Metallurgy is the process of:Bronze, an alloy resistant to sun and rain, is made from which composition?An alloy in which one of the constituent metals is mercury is given which special name?In electroplating, what is coated onto a more reactive metal by electrolysis?In anodization of aluminium, the article is made the anode so that a protective layer of wDepositing a layer of molten tin on a metal surface, popularly called 'kalhaee', is known In galvanizing, why does the zinc layer corrode before the iron beneath it?In galvanizing, a thin layer of which metal is applied to protect iron or steel?